diff --git a/eos/db/migrations/upgrade4.py b/eos/db/migrations/upgrade4.py
new file mode 100644
index 000000000..87906cffc
--- /dev/null
+++ b/eos/db/migrations/upgrade4.py
@@ -0,0 +1,141 @@
+"""
+Migration 4
+
+- Converts modules based on Proteus Module Tiericide
+    Some modules have been unpublished (and unpublished module attributes are removed
+    from database), which causes pyfa to crash. We therefore replace these
+    modules with their new replacements
+
+    Based on http://community.eveonline.com/news/patch-notes/patch-notes-for-proteus/
+    and output of itemDiff.py
+"""
+
+
+CONVERSIONS = {
+    506: (  # 'Basic' Capacitor Power Relay
+        8205,  # Alpha Reactor Control: Capacitor Power Relay
+        8209,  # Marked Generator Refitting: Capacitor Power Relay
+        8203,  # Partial Power Plant Manager: Capacity Power Relay
+        8207,  # Type-E Power Core Modification: Capacitor Power Relay
+    ),
+    8177: (  # Mark I Compact Capacitor Power Relay
+        8173,  # Beta Reactor Control: Capacitor Power Relay I
+    ),
+    8175: (  # Type-D Restrained Capacitor Power Relay
+        8171,  # Local Power Plant Manager: Capacity Power Relay I
+    ),
+
+    421: (  # 'Basic' Capacitor Recharger
+        4425,  # AGM Capacitor Charge Array,
+        4421,  # F-a10 Buffer Capacitor Regenerator
+        4423,  # Industrial Capacitor Recharger
+        4427,  # Secondary Parallel Link-Capacitor
+    ),
+    4435: (  # Eutectic Compact Cap Recharger
+        4433,  # Barton Reactor Capacitor Recharger I
+        4431,  # F-b10 Nominal Capacitor Regenerator
+        4437,  # Fixed Parallel Link-Capacitor I
+    ),
+
+    1315: (  # 'Basic' Expanded Cargohold
+        5483,  # Alpha Hull Mod Expanded Cargo
+        5479,  # Marked Modified SS Expanded Cargo
+        5481,  # Partial Hull Conversion Expanded Cargo
+        5485,  # Type-E Altered SS Expanded Cargo
+    ),
+    5493: (  # Type-D Restrained Expanded Cargo
+        5491,  # Beta Hull Mod Expanded Cargo
+        5489,  # Local Hull Conversion Expanded Cargo I
+        5487,  # Mark I Modified SS Expanded Cargo
+    ),
+
+    1401: (  # 'Basic' Inertial Stabilizers
+        5523,  # Alpha Hull Mod Inertial Stabilizers
+        5521,  # Partial Hull Conversion Inertial Stabilizers
+        5525,  # Type-E Altered SS Inertial Stabilizers
+    ),
+    5533: (  # Type-D Restrained Inertial Stabilizers
+        5531,  # Beta Hull Mod Inertial Stabilizers
+        5529,  # Local Hull Conversion Inertial Stabilizers I
+        5527,  # Mark I Modified SS Inertial Stabilizers
+        5519,  # Marked Modified SS Inertial Stabilizers
+    ),
+
+    5239: (  # EP-S Gaussian Scoped Mining Laser
+        5241,  # Dual Diode Mining Laser I
+    ),
+    5233: (  # Single Diode Basic Mining Laser
+        5231,  # EP-R Argon Ion Basic Excavation Pulse
+        5237,  # Rubin Basic Particle Bore Stream
+        5235,  # Xenon Basic Drilling Beam
+    ),
+    5245: (  # Particle Bore Compact Mining Laser
+        5243,  # XeCl Drilling Beam I
+    ),
+
+    22619: (  # Frigoris Restrained Ice Harvester Upgrade
+        22617,  # Crisium Ice Harvester Upgrade
+    ),
+    22611: (  # Elara Restrained Mining Laser Upgrade
+        22609,  # Erin Mining Laser Upgrade
+    ),
+
+    1242: (  # 'Basic' Nanofiber Internal Structure
+        5591,  # Alpha Hull Mod Nanofiber Structure
+        5595,  # Marked Modified SS Nanofiber Structure
+        5559,  # Partial Hull Conversion Nanofiber Structure
+        5593,  # Type-E Altered SS Nanofiber Structure
+    ),
+    5599: (  # Type-D Restrained Nanofiber Structure
+        5597,  # Beta Hull Mod Nanofiber Structure
+        5561,  # Local Hull Conversion Nanofiber Structure I
+        5601,  # Mark I Modified SS Nanofiber Structure
+    ),
+
+    1192: (  # 'Basic' Overdrive Injector System
+        5613,  # Alpha Hull Mod Overdrive Injector
+        5617,  # Marked Modified SS Overdrive Injector
+        5611,  # Partial Hull Conversion Overdrive Injector
+        5615,  # Type-E Altered SS Overdrive Injector
+    ),
+    5631: (  # Type-D Restrained Overdrive Injector
+        5629,  # Beta Hull Mod Overdrive Injector
+        5627,  # Local Hull Conversion Overdrive Injector I
+        5633,  # Mark I Modified SS Overdrive Injector
+    ),
+
+    1537: (  # 'Basic' Power Diagnostic System
+        8213,  # Alpha Reactor Control: Diagnostic System
+        8217,  # Marked Generator Refitting: Diagnostic System
+        8211,  # Partial Power Plant Manager: Diagnostic System
+        8215,  # Type-E Power Core Modification: Diagnostic System
+        8255,  # Type-E Power Core Modification: Reaction Control
+    ),
+    8225: (  # Mark I Compact Power Diagnostic System
+        8221,  # Beta Reactor Control: Diagnostic System I
+        8219,  # Local Power Plant Manager: Diagnostic System I
+        8223,  # Type-D Power Core Modification: Diagnostic System
+    ),
+
+    1240: (  # 'Basic' Reinforced Bulkheads
+        5677,  # Alpha Hull Mod Reinforced Bulkheads
+        5681,  # Marked Modified SS Reinforced Bulkheads
+        5675,  # Partial Hull Conversion Reinforced Bulkheads
+        5679,  # Type-E Altered SS Reinforced Bulkheads
+    ),
+    5649: (  # Mark I Compact Reinforced Bulkheads
+        5645,  # Beta Hull Mod Reinforced Bulkheads
+    ),
+    5647: (  # Type-D Restrained Reinforced Bulkheads
+        5643,  # Local Hull Conversion Reinforced Bulkheads I
+    ),
+}
+
+def upgrade(saveddata_engine):
+
+    # Convert modules
+    for replacement_item, list in CONVERSIONS.iteritems():
+        for retired_item in list:
+            saveddata_engine.execute('UPDATE "modules" SET "itemID" = ? WHERE "itemID" = ?', (replacement_item, retired_item))
+            saveddata_engine.execute('UPDATE "cargo" SET "itemID" = ? WHERE "itemID" = ?', (replacement_item, retired_item))
+
diff --git a/staticdata/eve.db b/staticdata/eve.db
index e52adba6a..b29208ba5 100644
Binary files a/staticdata/eve.db and b/staticdata/eve.db differ